thumb|right|class=skin-invert-image|UV visible spectrum of tryptophol.
thumb|right|class=skin-invert-image|UV visible spectrum of tryptophol.
Tryptophol is an aromatic alcohol that induces sleep in humans. It is found in wine as a secondary product of ethanol fermentation. It was first described by Felix Ehrlich in 1912. It is also produced by the trypanosomal parasite in sleeping sickness.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).